D300s versus D7000

So, I've been wanting to get a new camera body that can get a bit better image quality at higher ISO and faster shutter speeds with less noise for wildlife photography. I like the D7000, but I was hoping for the successor for the D300s, which wasn't announced by Nikon today.

Are there any advantages of the D300s over the D7000 at this point? Would it be better to go with a D7000 for now and then consider the D300s successor in six to twelve months?
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Capturing my world in the raw... 16 megapixels at a time.